KiCad sourceIoT & home automation
Air Quality Sensor
by roepkefeller
DIY air quality monitor: ESP32-C3, 4 Sensirion/Bosch sensors, custom 4-layer PCB, ESPHome firmware with Home Assistant integration.
57 2No license
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Download ProtoFlow312 published boards whose schematic and layout source is public — KiCad, EAGLE, Altium and EasyEDA projects you can read, fork and build on. Every entry links to the original repository and names its licence.
KiCad sourceby roepkefeller
DIY air quality monitor: ESP32-C3, 4 Sensirion/Bosch sensors, custom 4-layer PCB, ESPHome firmware with Home Assistant integration.
KiCad sourceby vul-os
Open hardware: 107 KiCad PCB designs — SMD-to-THT breakout adapters, ATTiny/ATMega/ESP development boards, and a 39-part sensor line on a common JST-SH connector.
KiCad sourceby ckflight
Frequency Modulated Continuous Wave Radar hardware and software design files with 26 dBm output power covering around 250 m.
KiCad sourceby rniwase
Board for converting SDTV analog video to MIPI CSI-2 using Analog Devices ADV7280A-M.
KiCad sourceby UzixLS
Smallest ZX Spectrum clone with real Z80 and FPGA
KiCad sourceby openeew
Hardware for an OpenEEW sensor
KiCad sourceby LibreSolar
Fully integrated 12V-24V BMS using ISL94202
KiCad sourceby galopago
Electronic hardware prototyping system. Solderless, robust and open source. Solves the typical problem of the circuit that works on a breadboard but stops working on a real-world setup. Easy to replicate and compatible with virtually every electronic module.
KiCad sourceby martinribelotta
STM32H7 Arduino form factor and software compatible board
by GaudiLabs
Open Source Theremin Instrument, Shield PCB and Hardware description
by stonedDiscord
Sega Mega Drive Schematic and Board Files
KiCad sourceby Pakequis
Mechanical keyboard for left hand with Raspberry Pi Pico for games.
KiCad sourceby UzixLS
10x10cm PCB variant of MIST FPGA project for G738/G706 enclosure
by sunyitong
Open-source RP2040 replacement core board for the Polaroid SX-70 instant camera.
KiCad sourceby vd-rd
Open hardware compute module with Allwinner A13 (ARM-A8 @1GHz), DDR3 (max 512MB) and expansions (USB, GPIO, WiFi, LCD, Audio)
KiCad sourceby UzixLS
ZX Spectrum soundcard for NEMOBUS/ZXBUS
KiCad sourceby jsanpe
A Composite & S-video to Component transcoder for the OSSC
KiCad sourceby valerionew
A dock for Onion omega, omega2 and omega2+. It features: Microusb for power supply, USB host, Ethernet
KiCad sourceby badjeff
An open source breakout board for PixArt PAW3395DM-T6QU / PAW3950DM-T5QU low power optical mouse sensor.
by CIRCUITSTATE
Open-Source RP2040 Microcontroller Development Board
KiCad sourceby 4x1md
AFSK interface for Android smartphones and tablets.
KiCad sourceby robsonsmartins
A memory device programmer (Flash/EPROM/E2PROM) board and software, connected to PC by USB port.
by sporniket
A conversion to Kicad EDA of the schematics of a computer released around 1989 known as the "Atari STE".
KiCad sourceby JohSchneider
a handheld gaming system build around the raspberry-pi zero running emulationstation
by tscircuit
Find parts from JLCPCB matching design constraints (resistance values, capacitance, tolerance etc.)
KiCad sourceby UzixLS
Easy-to-build minimalistic ZX Spectrum clone
by ziteh
PCB axial flux PMSM/BLDC motor (WIP)
KiCad sourceby 4x1md
DIY GPS module for Nikon DSLR
KiCad sourceby 0101shift
All design files, source code, and documentation for Project OAK, a digital watch inspired by mechanical complications.
KiCad sourceby maelh
Radio frequency prototype boards (based on MegawattKS' design)
KiCad sourceby cajunpanda
A HiFi audio mod for various Game Boy models
KiCad sourceby UzixLS
10x10cm PCB variant of ZX-Evolution project for G738/G706 enclosure
KiCad sourceby UzixLS
10x10cm PCB variant of ZX-UNO project for G738/G706 enclosure
KiCad sourceby 4x1md
External bridge SWR meter for Yaesu FT-817ND and other QRP HF transceivers.
KiCad sourceby UzixLS
MOS SID sound card for ZX Spectrum
KiCad sourceby DIYSynthMNL
A multi saturation module with voltage controlled wet/dry mix
KiCad sourceby Atlantix-EDA
Companion PCB Release & Manufacturing Tool for KiCad
KiCad sourceby tomtor
STM32 and AVR128 Printed Circuit Board for creating IOT nodes with the RFM95 LORA chip
KiCad sourceby UzixLS
Extension board for Sizif-512
KiCad sourceby rniwase
Nintendo Gameboy cartridge-shaped FPGA development board
KiCad sourceby KabukiFlux
JAMMA Xbox360 wired controller for RGBUNTU/PI cheap
KiCad sourceby Kampi
Zigbee environment sensor device with Zigbee2MQTT support.
KiCad sourceby UzixLS
RGB to YPbPr converter
KiCad sourceby UzixLS
Converts RGB + Sync analog signal to S-Video (and also Composite).
Every project listed here belongs to its author and is linked to its original repository. Licences are read from the repository metadata and summarised for convenience — check the licence file in the project itself before you manufacture or redistribute a design. ProtoFlow does not host, mirror or verify these files. Index last rebuilt 2026-09-21.